title: Effects of elevated pCO2 on reproductive properties of the benthic copepod Tigriopus japonicus and gastropod Babylonia japonica.
abstract: We investigated the effects of elevated pCO2 in seawater both on the acute mortality and the reproductive properties of the benthic copepod Tigriopus japonicus and gastropod Babylonia japonica with the purpose of accumulating basic data for assessing potential environmental impacts of sub-sea geological storage of anthropogenic CO2 in Japan. Acute tests showed that nauplii of T. japonicus have a high tolerance to elevated pCO2 environments. Full life cycle tests on T. japonicus indicated NOEC=5800μatm and LOEC=37,000μatm. Adult B. japonica showed remarkable resistance to elevated pCO2 in the acute tests. Embryonic development of B. japonica showed a NOEC=1500μatm and LOEC=5400μatm. T. japonicus showed high resistance to elevated pCO2 throughout the life cycle and B. japonica are rather sensitive during the veliger stage when they started to form their shells.
authors.affiliation: Demonstration Laboratory, Marine Ecology Research Institute, Arahama 4-7-17, Kashiwazaki-shi, Niigata 945-0077, Japan. Electronic address: jun-kita@t3.rim.or.jp.
authors.forename: Jun
authors.initials: J
authors.lastname: Kita
authors.forename: Takashi
authors.initials: T
authors.lastname: Kikkawa
authors.forename: Takamasa
authors.initials: T
authors.lastname: Asai
authors.forename: Atsushi
authors.initials: A
authors.lastname: Ishimatsu
mesh_terms: D000818:Animals; D002245:Carbon Dioxide / Q000032:analysis / Q000633:toxicity*; D057965:Carbon Sequestration; D033342:Copepoda / Q000502:physiology*; D004784:Environmental Monitoring; D049851:Gastropoda / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D007564:Japan; D008018:Life Cycle Stages; D012098:Reproduction / Q000187:drug effects; D012623:Seawater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical; D002245:Carbon Dioxide
keywords: Babylonia japonica; CCS; Elevated pCO(2); Ocean acidification; Risk assessment; Tigriopus japonicus